text: """empty message
  
  Revision ID: 30fe0e82d100
  Revises: d21b7288ec04
  Create Date: 2017-09-14 15:47:02.032628
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  
  # revision identifiers, used by Alembic.
  revision = '30fe0e82d100'
  down_revision = 'd21b7288ec04'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column('session', sa.Column('location', sa.TEXT(), nullable=True))
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('session', 'location')
      # ### end Alembic commands ###
  